Features:
- Impact-Resistant Thermoplastic Nylon Cover and Body
- Smooth Face Does not Collect Dirt
- Single-Piece Brass Mounting Strap on Extra Heavy-Duty Devices, Multi-Piece Steel Strap on Heavy-Duty Devices
- Large, Triple-Wipe, Brass "T" Contacts for Superior Contact and Conductivity
- Exclusive V-Shaped, Serrated Back-Wiring Clamps for Superior Contact and Conductivity